Home / 149,526.92-206,346.53-81,543.71

Finding the Fourth Proportional to 149,526.92, 206,346.53 and 81,543.71

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Solution

The fourth proportional to 149,526.92, 206,346.53 and 81,543.71 is: 112,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,526.92 : 206,346.53 = 81,543.71 : x
  2. Step 2: Convert to fraction form
    149,526.92/206,346.53 = 81,543.71/x
  3. Step 3: Cross multiply
    149,526.92x = 206,346.53 × 81,543.71
  4. Step 4: Simplify right side
    149,526.92x = 16,826,260,162.38
  5. Step 5: Solve for x
    x = 16,826,260,162.38/149,526.92
  6. Step 6: Final answer
    x = 112,529.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.